Printer&#39;s chase.



C. E. MILLER.

PRINTERS CHASE.

` (Application led Kar. 29, 1900.1

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SPECIFICATION forming' part of Letters Patent No. 667,946, datedFebruary V12, 1901.

Application tiled March 29, 1900. Serial No. 10,635. (No modeh) To allwhom it' may concern.'

Be it known that I, CHARLES E. MILLER, a citizen of the United States ofAmerica, residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inPrinters Chases, of which the following is a speciiication, referencebeing had therein to the accompanying drawings.

This invention relates to certain new and useful improvements inprinters chases, and is particularly adapted for locking up forms foruse in connection with printing-presses.

The invention aims to provide a printers cha-se adapted for adjnstablyconnecting and retaining within the chase all the parts required forlocking forms of different sizes therein successfully at different timesto save labor in locking and unlocking forms and save time and labor inthe Work required in fitting and iixing form-locking mechanism, &c.,generally adapted for locking and positioning forms, and, further, toobtain lightness, accuracy, and solidity.

Briefly described, the invention consists of a rectangular frame formingthe chase and having the inner edge of the sides and ends formed with aseries of locking-teeth, a set of longitudinally-extending mainpositioningbars having one edge formed with a series of locking-teeth,auxiliary positioning-bars having their ends formed with a series oflockingteeth adapted to engage in the teeth of the main positioning baror bars, and a series of locking-bars having their ends provided withlocking-teeth which engage the teeth of the main positioning-bars andare each provided with locking means for securing the various bars andform in the desired position or for securing the form between the mainand auxiliary locking-bars within the chase, and providing one face ofthe chase with a combination linear and printers scale.

1With the above and other objects in view the invention consists inproviding a printers chase which shall be extremely simple inconstruction, strong, durable, efficient in its operation, andcomparatively inexpensive to manufacture.

The invention nally consists in the novel construction, combination, andarrangement of parts to be hereinafter more fully described, andspecically pointed out in the claims.

In describing the invention in detail reference is had to theaccompanying drawings, forminga part of this specication, and whereinlike numerals of reference indicate corresponding parts throughout theseveral views, in Which Figure lisa top plan View of my improvedprinter-s chase. Fig. 2 is an end view thereof, showing the removablebearer to resist the pressure of the inking-rollers of job-presses uponthe form. Fig. 3 is a perspective View of, the locking-bar with theWedge locking mechanism removed therefrom. Fig. 4 is a perspective viewof the operating-Wedge for the locking-block. Fig. 5 is a perspectiveview of the locking-block. Fig. 6 is an enlarged cross-sectional Viewtaken ou the line 6 6 of Fig. l. Fig. 7 is a top plan View of a portionof the chase and one of the lockingbars, showing a modied form of teeth.Fig. S is a perspective view of one corner of the chase. Fig. 9 is aperspective view, broken away, of the roller-bearer.

Referring to the drawings by referencenumerals, l and 2 indicateparallel sides and 3 and 4 denote parallel ends of the rectangular frameor chase. They are preferably made of solid metal strips or bars ofuniform thickness and each provided on their inner edge with a series oflocking-teeth 5. The sides and ends are shown as formed integral,although the same may be cast separately and secured together in anydesirable manner. Each notch or tooth on the inner face of the sides andends is designed to measure the space of a pica type or one-sixth of aninch.

The reference-numerals 6 7 denote main positioning-bars, (as many may beprovided as desired,) which have one of their edges formed with a seriesof locking-teeth 8, and each end also provided with a series oflocking-teeth 9, and, as shown, the bars are arranged in a longitudinalmanner, although these bars may be arranged transversely to the bars 12, if desired. These bars are further provided with a series of openingsl0 for diminishing the weight thereof. Arranged between a pair of themain positioning-bars IOO is an auxiliary locking-bar 11, provided withopenings 12 to diminish the weight thereof and having its ends formedwith a series of locking-teeth 13, which engage within the teeth of themain positioning-bars.

The reference-numeral 14 indicates a locking-bar having each end formedwith a series of locking-teeth l5, which are adapted to engage in theteeth of the main positioning-bars, and this locking-bar is arrangedbetween the main bars, as shown. Either' one or more locking-bars may beemployed, and the same can be arranged transversely or longitudinally,as desired.

The locking-bar 14 is provided with a recess 16 and the opening 17 inthe top thereof, terminating in the recess 16, and mounted within therecess 16 is an operating-wedge 18 for the locking-block. Theoperating-wedge has arranged thereon a series of teeth 19 upon one ofits faces and on its opposite face has two or more corrugated shouldersor offsets 2O for. forcing the locking -block outwardly. The bottom ofthe recess is formed with a toothed rack 21 in such a manner that whenthe operating-wedge 1S is arranged within the recess the toothed portionof the Wedge will be at the front of the rack 21, so that when a key isinserted the wedge-block can be operated.

The locking-block consists of a rectangular piece of suit-able material22, arranged in a Vertical manner and having its inner face formedintegral with a fiat rectangular block 23, which is seated Within therecess 16 of the locking-bar. This block 23 is formed at each end withan opening 24 to receive a stay-pin 24 to prevent its removal from therecess, and is further provided with a set of angularshaped corrugatedrecesses 25, in which is arranged the offset or shoulder 20 of theoperating wedge when the lockingblock is seated within the recess. Thelocking-bar 14 is further provided with openings 26 for the reception ofthe stay-pins 24 for retaining the locking-block in position, as shown.The rectangular strip 22 of the locking-block is adapted to engage theform and secure the same in position when the locking mechanism isoperated.

The inner face of the chase or rectangular frame is provided with acombination linear and printers scale, as at 27, and the upper face ofthe sides 1 and 2 are each provided with a removable bearer 28, toresist somewhat the compression of the rollers upon the form.

The length and width of the inside measurement of the chase and lengthand Width of all bars are based on pica measurement, and the teethformed on the end of the main positioning-bar, the auxiliarypositioning-bar, and locking-bar are so arranged that a shift of onepica or more can be obtained. This will enable the operator to shift thebars.

In Fig. 7 is shown a modified form of bar which consists of providingthe inner edges of the chase and the ends of the bars with slanting orinclined teeth 29.

The operation of the improved chase is as follows: When a form is to belocked up that is much smaller than the chase, it is first desirable toascertain what Width or length it may be by means of the linearmeasurement upon the upper face of the chase. Either one or more of themain positioning-bars, according to the shape of the form, are placedwithin the chase and secured within the same by means of the engagementof the teeth on the ends of the bars with the teeth upon the chase. Theauxiliary locking-bar, if desired, is then placed within the chase andhaving the ends thereof engaging the main positioning-bars or one of themain positioning-bars and the teeth of the chase. One or morelocking-bars are'then placed in position and the lockingblock operatedby means of a suitable key, the shoulders or offsets 2O engaging theteeth 25 forcing the block outwardly and strip 22 against the type, andthe form is securely held within the chase. The invention is such thatone or more of the positioning-hars can be used, the auxiliary bardispensed with, or the auxiliary and one of the main positioningbarsdispensed with or the positioning-bars and auxiliary bar dispensed withand a locking-bar of sufficient length employed to en1 gage the teeth ofthe bars 1 2.

The invention further permits the chase to be used without any barswhatsoever, thus not reducing the capacity of the chase. By using onlyone bar extremely long or narrow forms can be locked up quickly that maytax the capacity of the chase in one direction. The slanting teeth 29,as shown in Fig. 7, have an inWardly-wedging action when interlocked andobviate any lateral movement of the positioning-bars or of thelocking-bar.

It is thought that the many advantages of my improved device can bereadily understood from the foregoing description, taken in connectionwith the accompanying drawings, and it will be noted that variouschanges may be made in the details of construction without departingfrom the general spirit of my invention.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

l. In a printers chase, the combination, with the rectangular framecomprising side and end bars, each of said bars being provided on itsinner edge with teeth, and on their upper faces with a combined linearand printers scale, of one.or more positioningbars havingtoothed ends toengage with the IOO IIO

teeth on the inner edges of." the end bars of edges of thepositioning-bars, said iocking bar provided with a recess extendinglongitudinally of the bar and in its top with an opening communicatingwith said recess, a locking-block seated Within said recess, and anoperating wedge arranged Within said locking-bar and engaging saidlocking-block to actuate the latter and lock a form within the chasewhen the operating-Wedge is operated, substantially as described.

:2. In a printers chase, the combination with the rectangular frainecomprising integral side and end hars, each of said bars be ing providedon its inner edge with teeth, and removable cushioningbearers carried bysaid traine, of one or incre positioning-bars hav' ing toothed ends toengage with the teeth on the inner edges of the end bars of the frame,said positioning-bars provided on their inner edges with teeth, anauxiliary bar provided with toothed ends to engage with the teeth on theinner edges of the positioning-bars, a locking-bar provided with toothedends to engage with the teeth on the inner edges of the positioningbars, said locking-bar provided with a recess extending longitudinallyof the bar and in its top `Nith an opening coininunicating with saidrecess, a locking-block scaled within said recess and an operating wedgearranged within said locking-bar and engaging' said locking-block toactuate the latter and lock a forni within the chase When the operating-Wedge is operated, substantially as described.

in a printers chase, the combination with the rectangular 'framecomprising integral side and end bars, each of said bars being providedon its inner edge with teeth, of apair of positioning-bars havingtoothed ends to engage with the teeth on the inner edges of the end barsel the traine, said positioning-bars provided on their inner edges withteeth, an auxiliary bar provided with toothed ends to engage With theteeth on the inner edgesV of the positioning-bars, a locking-barprovided with toothed ends to engage with the teeth on the inner edgesof the positioning-bars, said locking-bar provided With a recess and inits top with an opening communicating with said recess, a locking-blockseated Within the recess of the locking-bar, a strip carried by saidlocking-block, and an operating-Wedge arranged Within the recess of thelocking-bar and engaging with said locking-block to actuate the latterand lock a forni Within a chase, substantially as den scribed.

et. In a printer-s chase, a frame comprising integral side and end bars,each of said bars being provided on its inner edge with teeth, aremovable pressn re-resisting bearer carried by each of-said side bars,and a pair of posie tioning-bars having toothed ends to engage with theteeth on the inner edges of the end bars, said positioning-bars providedon their inner edges with teeth, coinbined with a locking-bar havingtoothed ends and provided With a recess extending longitudinally of thebar and in its top with a rack com lnunicat ing with said recess, a rackformed at the rear Wall of said recess, a locking-block seated Withinsaid recess, a strip carried by said block outside the bar, and anoperating- Wedge arranged within said recess and adapted when actuatedto operate the lockingblock to lock a form Within the chase.

In testimony whereof I afx my signature in the presence oftwo'witnesses.

CHARLES E. MILLER. lWitnesses:

JOHN NOLAND, E. W. ARTHUR.

